1) Option C is correct because as US Federal reserve
decreases the money supply interest rate will rise and
hence more foreign investment will be done in US led to the higher
demand for US dollar in the market and hence US dollar appreciates
relative to other currencies
2) option D is not a disadvantage of freely floating exchange
rate
3) Option B is correct because proponents of this system
maintain that it is more effecient for one price to change than to
change all internal prices
4)5)&6) Option B is correct . Potential limitation of freely
floating exchange rate is that exchange rate will experience more
volatile , prone and frequent fluctuations
7) option A is correct Because by increasing money supply ,LM
curve will shifts to the right and as a result interest rate will
decrease which will influence investment decision that is because
of lower interest rate investment inflow in US will decrease
8) option D is correct . As currency devalues , imports become
relatively expensive and hence foreign exporters find it difficult
to supply goods to devalued country.